12102224 has 20 divisors (see below), whose sum is σ = 23683380. Its totient is φ = 5990400.

The previous prime is 12102199. The next prime is 12102239. The reversal of 12102224 is 42220121.

It can be written as a sum of positive squares in 2 ways, for example, as 9412624 + 2689600 = 3068^2 + 1640^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12102199 and 12102208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2129 + ... + 5360.

It is an arithmetic number, because the mean of its divisors is an integer number (1184169).

Almost surely, 2^12102224 is an apocalyptic number.

It is an amenable number.

12102224 is a deficient number, since it is larger than the sum of its proper divisors (11581156).

12102224 is a wasteful number, since it uses less digits than its factorization.

12102224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7598 (or 7592 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 12102224 is about 3478.8250890207. The cubic root of 12102224 is about 229.5911071515.

Adding to 12102224 its reverse (42220121), we get a palindrome (54322345).

The spelling of 12102224 in words is "twelve million, one hundred two thousand, two hundred twenty-four".